- Author: Rutbert D. Reisch
- Language: German
- Year: 2008
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- Year: 2002
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- Year: 1995
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- Year: 2020
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- Year: 2008
- Author: Hubert Hinzen
- Language: German
- Year: 2009
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- Year: 1970
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- Language: German
- Year: 1996
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- Year: 1942
- Author: Udo Broll, Bernard M. Gilroy
- Language: German
- Year: 1994